Lorries, road tractors, semi-trailers and trailers, by kind of transport (number) (discontinued)

The data in this dataset comes from the Common Questionnaire for Transport Statistics, developed and surveyed in co-operation between the United Nations Economic Commission for Europe (UNECE), the International Transport Forum (ITF) and Eurostat. The Common Questionnaire is not supported by a legal act, but is based on a gentlemen's agreement with the participating countries; the completeness varies from country to country. Eurostat’s datasets based on the Common Questionnaire cover annual data for the EU Member States, EFTA states and Candidate countries to the EU. Data for other participating countries are available through the ITF and the UNECE. In total, comparable transport data collected through the Common Questionnaire is available for close to 60 countries worldwide. The Common Questionnaire collects aggregated annual data on:
Railway transportRoad transportInland waterways transportOil pipelines transportGas pipelines transport For each mode of transport, the Common Questionnaire cover some or all of the following sub-modules (the number of questions/variables within each sub-module varies between the different modes of transport):
Infrastructure (All modes)Transport equipment (RAIL, ROAD and INLAND WATERWAYS)Enterprises, economic performance and employment (All modes)Traffic (RAIL, ROAD and INLAND WATERWAYS)Transport measurement (All modes)
Accidents (ROAD only) The Common Questionnaire is completed by the competent national authorities. The responsibility for completing specific modules (e.g. Transport by Rail) or part of modules (e.g. Road Infrastructure) may be delegated to other national authorities in charge of specific fields.

本数据集的数据源自运输统计通用调查问卷（Common Questionnaire for Transport Statistics），该问卷由联合国欧洲经济委员会（UNECE）、国际运输论坛（ITF）与欧盟统计局（Eurostat）联合制定并开展调研。
该通用调查问卷并无法律法案作为支撑，而是基于参与国之间的君子协定；数据完整性因国家而异。
欧盟统计局基于该问卷的数据集涵盖欧盟成员国、欧洲自由贸易联盟（EFTA）成员国以及欧盟候选国的年度运输数据。其他参与国的数据可通过国际运输论坛与联合国欧洲经济委员会获取。
目前，通过该通用调查问卷收集的可比对运输数据覆盖全球近60个国家。
该通用调查问卷收集的年度汇总数据涵盖以下类别：铁路运输、道路运输、内河航运、石油管道运输及天然气管道运输。
针对每种运输方式，通用调查问卷包含下述部分或全部子模块（各子模块内的问题/变量数量因运输方式而异）：
- 基础设施（所有运输方式通用）
- 运输装备（仅适用于铁路、道路及内河航运）
- 企业、经济绩效与就业（所有运输方式通用）
- 交通流量（仅适用于铁路、道路及内河航运）
- 运输测算（所有运输方式通用）
- 事故统计（仅适用于道路运输）
本调查问卷由国家主管部门负责填写。特定模块（如铁路运输）或模块部分内容（如道路基础设施）的填报职责，可委托给负责特定领域的其他国家主管部门承担。